Iozone: Performance Test of File I/O Version $Revision: 3.483 $ Compiled for 64 bit mode. Build: linux-AMD64 Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa, Alexey Skidanov, Sudhir Kumar. Run began: Thu May 1 15:43:44 2025 Auto Mode Machine = Linux oleg318-client.virtnet 3.10.0-7.9-debug #1 SMP Sat Mar 26 23:2 Excel chart generation enabled Excel chart generation enabled Verify Mode. Pattern dbdbdbdb Performance measurements are invalid in this mode. Using maximum file size of 102400 kilobytes. Using Maximum Record Size 512 kB Command line used: iozone -a -M -R -V 0xab -g 100M -q 512k -i0 -i1 -f /mnt/lustre/d4.lustre-rsync-test/d0.iozone-oleg318-client.virtnet/iozone-file Output is in kBytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 kBytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. random random bkwd record stride kB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 64 4 1735 25517 378715 402569 64 8 12009 39263 254006 576282 64 16 9870 43985 818885 969761 64 32 11933 86125 1101022 1168097 64 64 15590 108467 1648808 1599680 128 4 11928 7115 140182 317711 128 8 13852 39592 419494 398625 128 16 21094 64583 935631 901083 128 32 17783 57710 368779 1133103 128 64 15890 49155 1440082 1306873 128 128 24801 134324 1997245 1802755 256 4 16154 22038 368881 359014 256 8 14259 39596 589706 101269 256 16 25661 70001 638445 234451 256 32 21927 59966 1369908 1230218 256 64 24596 54538 1523457 1455317 256 128 35432 152654 1422540 1369908 256 256 42043 169204 1924938 2061693 512 4 15070 12511 127934 134809 512 8 10273 40868 571320 165066 512 16 19154 36829 804962 717308 512 32 29405 89872 73308 1320061 512 64 39664 99091 1493584 1376763 512 128 55549 136133 1640796 1667552 512 256 35585 85445 1882427 1729323 512 512 40320 155436 919375 1970519 1024 4